1. The problem statement, all variables and given/known data Find the Maclaurin series of the function https://webwork.wustl.edu/webwork2_files/tmp/equations/87/63afd4b6f3566e2a90aa420dc5d1821.png [Broken] c_3 = c_4 = c_5 = c_6 = c_7 = 2. Relevant equations 3. The attempt at a solution (8x^2)[(9x) - (9x)^3/3! + (9x)^5/5! - (9x)^7/7! + ...] I got c_3 = 72, which is correct, and c_5 = (8x^2)[(9x^3)/3!] = 5832/3! (coefficient) Apparently that's wrong and it's supposed to be -116640/(5!). What did I do wrong? Thanks!